[ANGLÈS] Binaural technology intends to recreate a 3D sound experience over headphones. This can be achieved by means of binaural recordings (using microphones inserted in the ear canal) or by binaural synthesis. The latter simulates virtual sources and room effect using dedicated filters, namely HRTFs. The Web Audio API is a W3C standard API for processing and synthesizing audio in web applications. As it is still in a process of development and the documentation is scarce, a deep study of the Web Audio API has been done. The aim of this project is to develop a real-time binaural synthesis processor in the browser using the Web Audio API. For the binaural synthesis approach, two different processing structures have been developed: synthesis of measured HRTF filters and synthesis of measured HRTF filters modeled as IIR filters and a delay.